grpc: cannot import name '_server' from 'grpc' (/path/to/grpc/packages)

Hey, I'm currently trying to get an opencue farm up and running on my Linux machines. I'm currently setting up the rqd nodes, but when I try starting them, I get the error:

ImportError: cannot import name '_server' from 'grpc' (/path/to/__init__.py)

- I'm using rocky linux9
- the code is running in a venv environment
- the _server.py file does exist in the expected location
- the __init__.py file is in the same expected location

I followed the official documentation on the opencue website.
I'm at a bit of a loss what the problem could be and would appreciate further steps to troubleshoot this and would be happy to provide further information if I'm able to.

Thanks in advance.

Start by reproducing rqd startup in the reported Rocky Linux 9 virtual environment and inspect the grpc package's __init__.py and _server.py at the shown import location. Verify how the documented OpenCue setup resolves grpc and whether the failing import can be reproduced; done means identifying a confirmed cause and documenting the required correction or next troubleshooting step.

Written by the indexing model from the issue text.